From site: The Verification of the Origins of Rotation in Tornadoes Experiment 2 (VORTEX2) is the largest and most ambitious field experiment in history to explore tornadoes...
The VORTEX2 teams will be looking to understand how, when and why tornadoes form. Answers to these questions will give researchers a better understanding of tornadoes and should help increase warning time for those in the path of these deadly storms.
NSSL's Severe Weather Primer
Questions and answers about severe weather, including thunderstorms, tornadoes, floods, hail, lighting, winter weather and damaging winds.
LearningReviews.com note: Educational resources include NSSL's Severe Weather Primer, Severe Weather Safety Page, NOAA Storm Spotters' Guide, National Weather Service Online School for Weather, and a VORTEX2 Science Glossary.